Java 25 is now non-experimental builds on GH CI for Ubuuntu and macOS

Windows still has random failures or bugs in tests

Author: garydgregory

.github/workflows/maven.yml

@@ -29,18 +29,18 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        java: [ 8, 11, 17, 21 ]
+        java: [ 8, 11, 17, 21, 25 ]
         experimental: [false]
         include:
           - java: 25
             os: ubuntu-latest
-            experimental: true
+            experimental: false
           - java: 25
             os: windows-latest
             experimental: true
           - java: 25
             os: macos-latest
-            experimental: true
+            experimental: false
           - java: 26-ea
             os: ubuntu-latest
             experimental: true